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US 2003/0112140 A1Published application
Fuel cell system with a detection system for fire or elevated temperatures
AssigneeBallard Power Systems Inc.
InventorsTed Everson, Adrian Corless, Edward Mufford
Life of this patent
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Abstract
A fuel cell system includes a fuel cell stack with single fuel cells stacked together in a fuel cell housing and a detection system for fire or elevated temperatures. The detection system may include a monitoring system; a sensor unit that detects fire or elevated temperatures inside said fuel cell housing; and a voltage or current source.
Claims27
A fuel cell system, comprising:
- a fuel cell stack with single fuel cells stacked together in a fuel cell housing;
- and
- a fire or temperature detection system.
A method for detecting fire or elevated temperatures in a fuel cell stack in a fuel cell housing, said method comprising:
- generating an alarm signal via a sensor unit sensitive to at least one of elevated temperatures, light, or smoke in case of a fire or elevated temperatures inside said fuel cell housing, wherein said sensor unit is located inside the fuel cell housing;
- and
- switching operation of the fuel cell stack to a secure state.
Dependencies are inferred from the claim text.